I am sure many people notified you about this problem, but no actions were taken.. So here I am to remind you.
Some manga doesn't appear in the catalogue, like As The Gods Will 2, and In A Certain Town. The problem IS NOT apple's guidelines for materials, because they appear when you choose "Take a tour" but not when you have subsrcribed and logged in? WTH!
We could debate about ATGW, but IACT is on the safe side. So why didn't it appear? I do believe this is not due to Apple, but from Crunchyroll's end.
PLEASE FIX!

And they show up in the Android app. (I don't have one, but I briefly borrowed one to confirm this)

And if you put in a bookmark via Android, the bookmark will show up in the iPad app. But if you try to load the chapter, it comes up with a "Missing Series" error.

Whatever the reasons, this is really not acceptable. Tablets are ideal for reading. Yet if you only have an iPad, you are left with no legal alternative for reading certain titles on an ideal platform for reading.

And, no, the website's not an alternative. I can't curl up in the armchair with a MacBook pro held lightly in one hand!